From 2516ffac94e389cfeeb3abf2fd59d7c688a38f0c Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sun, 21 Apr 2013 14:07:53 +0300 Subject: [PATCH] staging/ozwpan: info leak in oz_cdev_ioctl() If we're not maxed out then oz_get_pd_list() leaves part of the "list" struct uninitialized. We should clear this so that no stack information is leaked to userspace. Signed-off-by: Dan Carpenter Signed-off-by: Greg Kroah-Hartman --- drivers/staging/ozwpan/ozcdev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/ozwpan/ozcdev.c b/drivers/staging/ozwpan/ozcdev.c index ba15aeb..27d0666 100644 --- a/drivers/staging/ozwpan/ozcdev.c +++ b/drivers/staging/ozwpan/ozcdev.c @@ -253,6 +253,7 @@ static long oz_cdev_ioctl(struct file *filp, unsigned int cmd, case OZ_IOCTL_GET_PD_LIST: { struct oz_pd_list list; oz_trace("OZ_IOCTL_GET_PD_LIST\n"); + memset(&list, 0, sizeof(list)); list.count = oz_get_pd_list(list.addr, OZ_MAX_PDS); if (copy_to_user((void __user *)arg, &list, sizeof(list))) -- 2.7.4